rs749370794

Positions:

• chrX-111162977-GGAA-G
• chrX-111162977-GGAA-GGAAGAA

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The ENST00000372007.10(PAK3):​c.546_548del​(p.Glu182del) variant causes a inframe deletion change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000775 in 1,199,582 control chromosomes in the GnomAD database, with no homozygous occurrence. There are 33 hemizygotes in GnomAD. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency:
  • Genomes: 𝑓 0.000081 (0 hom., 4 hem., cov: 23)
  • Exomes 𝑓: 0.000077 (0 hom. 29 hem.)
• Consequence: PAK3 ENST00000372007.10 inframe_deletion
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:3
• Conservation: PhyloP100: 8.19

Genes affected

PAK3 (HGNC:8592): (p21 (RAC1) activated kinase 3) The protein encoded by this gene is a serine-threonine kinase and forms an activated complex with GTP-bound RAS-like (P21), CDC2 and RAC1. This protein may be necessary for dendritic development and for the rapid cytoskeletal reorganization in dendritic spines associated with synaptic plasticity. Defects in this gene are the cause of a non-syndromic form of X-linked intellectual disability. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Jul 2017]

ACMG classification

Verdict is Likely_benign. Variant got -4 ACMG points.

• BS2: High Hemizygotes in GnomAd4 at 4 XL gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
PAK3	NM_002578.5	c.546_548del	p.Glu182del	inframe_deletion	9/18	ENST00000372007.10	NP_002569.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
PAK3	ENST00000372007.10	c.546_548del	p.Glu182del	inframe_deletion	9/18	1	NM_002578.5	ENSP00000361077	P1

Frequencies

GnomAD3 genomes AF: 0.0000812 AC: 9 AN: 110898 Hom.: 0 Cov.: 23 AF XY: 0.000120 AC XY: 4 AN XY: 33204

Gnomad AFR AF: 0.00

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.000764

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.000132

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.0000831 AC: 15 AN: 180542 Hom.: 0 AF XY: 0.0000749 AC XY: 5 AN XY: 66746

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000366

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.000263

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000101

Gnomad OTH exome AF: 0.000223

GnomAD4 exome AF: 0.0000772 AC: 84 AN: 1088633 Hom.: 0 AF XY: 0.0000816 AC XY: 29 AN XY: 355447

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.0000284

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000996

Gnomad4 SAS exome AF: 0.000167

Gnomad4 FIN exome AF: 0.0000247

Gnomad4 NFE exome AF: 0.0000792

Gnomad4 OTH exome AF: 0.0000437

GnomAD4 genome AF: 0.0000811 AC: 9 AN: 110949 Hom.: 0 Cov.: 23 AF XY: 0.000120 AC XY: 4 AN XY: 33265

Gnomad4 AFR AF: 0.00

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.000766

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000132

Gnomad4 OTH AF: 0.00

Alfa AF: 0.0000434 Hom.: 0

Bravo AF: 0.0000453

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:3

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Intellectual disability, X-linked 30 Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Jan 22, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Genomic Research Center, Shahid Beheshti University of Medical Sciences	Dec 03, 2017	- -

not provided Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Oct 09, 2023

This variant, c.546_548del, results in the deletion of 1 amino acid(s) of the PAK3 protein (p.Glu182del), but otherwise preserves the integrity of the reading frame. The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with PAK3-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs749370794; hg19: chrX-110406205;